Diamond ballerina ring by Tiffany & Co, circa 1970.

Diamond ballerina ring by Tiffany & Co. Set to centre with an oval brilliant cut diamond, G colour, VS2 clarity, with a weight of 1.05 carats, in an open back four claw setting, surrounded by an undulating row of twenty channel set tapered baguette cut diamonds, approximately G-H colour, approximately VS-SI clarity with a combined weight of 3.45 carats in open back claw settings, and set to the shoulders with twelve round brilliant cut diamonds, approximately G-H colour, approximately VS clarity with a combined weight of 0.30 carats in open back grain settings. The total approximate diamond weight is 4.80 carats, to an impressive diamond cluster with an ornately pierced gallery and fancy backholing, flanked by trumpeting split shoulders and flowing down to a solid D-shape shank. Marked platinum, maker's mark 'TIFFANY & CO.', numbered '36404', American, circa 1970, accompanied by a valuation report from Tiffany & Co., dated 1993 and Gemmological Certification Services report #5776-4745.